function ctc = GetColsToChange(tol0, tol15, tol75)
    DifDev = load('difdev.mat');
    %d0eff = load('dif0colEff');
    %cols0 = intersect(d0eff.dif0colEff, ledta(DifDev.dif0,tol0));
    cols0 = ledta(DifDev.dif0,tol0);
    cols15 = ledta(DifDev.dev15log10,tol15);
    cols75 = ledta(DifDev.dev75log10,tol75);
    ctc = intersect(intersect(cols0, cols15), cols75);
end